Last week end I took a friends Sti Subaru around the track so he could 'feel' what it could do. He has an Accuair sports setup bag over shock style with e-levelling - incidentally he is actually using KW3 shock it self.
The ride was amazing - typical slight understeer as AWD do but hugging the corners and riding the ripples the car remained settled and didn't jump or lurch as it would normally.
At the end of the drive - he dropped it his Sti on it's belly....vey surreal.
Costs are and will be a concern - all told including labour $5-6K - but you could tell where the money went.
My point is best of both worlds I felt and drove - quite amazing.